| U20 World Cup 1983 in Mexiko - Appearances as Assistant | ||||
| 04/06/1983 | Uruguay | - | USA | 3:2 |
| 07/06/1983 | Brazil | - | Nigeria | 3:0 |
| U20 World Cup 1983 in Mexiko - Appearances as Assistant | ||||
| 04/06/1983 | Uruguay | - | USA | 3:2 |
| 07/06/1983 | Brazil | - | Nigeria | 3:0 |
| Complete name: | Keith Stuart Hackett |
| Born: | 22/06/1944 |
| Place of birth: |
Sheffield, 
England |
| Residence: | Sheffield |
| Nationality: |
England |